Han,

I ran your files with the FastSolving option (generally the better performer) and had the following results:

Deneb_α_Cyg_200s_20191130_175725.fits -- Couldn't open either.  I did open and save as fits and jpeg in PixInsight but couldn't open the resulting files in SexySolverTester 1.2 (really strange since everything from my files loaded)
M13 dec min 30 degrees.fit -- FastSolving aborted.  I don't have an explanation, but a smaller FOV of M13 from my files solved in 0.552s
m42_20180918_055007_0_ixdaex_l_cal.fit -- solved in 6.15s
NGC_2359_Light_L_900_secs_2020-01-29T23-05-32_007 location removed.fits -- solved in 1.243s
Apogee F16M IC443_444-010-R solved.fit -- solved in 8.92s
IC1318_200s_20191130_183555.fits -- solved in 0.821s

Rob,

I had some issues with SexySolverTester 1.2 aborting silently on loading of files in some cases.

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